diff options
Diffstat (limited to 'src/mongo/db/pipeline/expression.cpp')
| -rw-r--r-- | src/mongo/db/pipeline/expression.cpp | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/src/mongo/db/pipeline/expression.cpp b/src/mongo/db/pipeline/expression.cpp index e07b2d950b5..aba6a767663 100644 --- a/src/mongo/db/pipeline/expression.cpp +++ b/src/mongo/db/pipeline/expression.cpp @@ -2700,10 +2700,24 @@ Value ExpressionMeta::evaluate(const Document& root, Variables* variables) const case MetaType::kIndexKey: return metadata.hasIndexKey() ? Value(metadata.getIndexKey()) : Value(); case MetaType::kSortKey: - return metadata.hasSortKey() - ? Value(DocumentMetadataFields::serializeSortKey(metadata.isSingleElementKey(), - metadata.getSortKey())) - : Value(); + if (metadata.hasSortKey()) { + switch (getExpressionContext()->sortKeyFormat) { + case SortKeyFormat::k42ChangeStreamSortKey: + invariant(metadata.isSingleElementKey()); + return Value(metadata.getSortKey()); + case SortKeyFormat::k42SortKey: + return Value(DocumentMetadataFields::serializeSortKeyAsObject( + metadata.isSingleElementKey(), metadata.getSortKey())); + case SortKeyFormat::k44SortKey: + return Value(DocumentMetadataFields::serializeSortKeyAsArray( + metadata.isSingleElementKey(), metadata.getSortKey())); + break; + default: + MONGO_UNREACHABLE; + } + } else { + return Value(); + } default: MONGO_UNREACHABLE; } |